Linking topo BlacklistedTables to query service.

And correctly restart the query services when conditions
change. See comment in code.
Merge branch 'replication'
Revamped Keyspace object and prep for re-resolution of topology for resharding.
Added keyspace_test and small fixes to keyspace module.
Added the keyspace_test to Makefile.
Fixed the constants in tests.
Merge branch 'monitoring'